A group of scientists are headed to the saltiest spot in the North Atlantic Ocean. They will spend six weeks at sea studying what's driving changes in the salt content of the ocean and how these variations relate to an acceleration of the global water cycle and climate change.
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Landsat 1 was launched in July 1972, starting the longest continuous observation of Earth's land surfaces from space. Here are some of the memorable scientific and societal contributions from the 40-year-old program.
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The world’s longest-running Earth-observing satellite program has collected more than three million images, showing two generations of planetary evolution and of human imprints on Earth. The Landsat archives tell an unparalleled story of our land surfaces.
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A dedicated team of scientists has returned to the remote boreal forests of northern Siberia to study how the boreal ecosystem moderates Earth's climate by storing carbon and the implications of a warming climate on those forests.
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In 2011, the fourth largest earthquake in history rocked the coast of Japan, spawning a devastating tsunami. Satellites and scientists had an unprecedented view of both. This gallery offers a glimpse of the broad scale of the destruction, of the recovery a year later, and of some new scientific understanding that emerged.
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Earth has a carbon problem, and some think trees are the answer. Would it help to plant more? To cut down fewer? Does it matter where? Scientists are working to get a better inventory of the carbon stored in trees.
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